shepaed



(Nuo Model.)

Away@ UNITED PAT-ENT OFFICE.

HENRY w. snnrann, on sr. Louis, Missouni.

FEED-WATER HEATER.

SPECICFICATION vtorriiing part of LetterslPatent No. 321,541, dated July '7, 1885.

Application filed December 1l, 1884. l (No model.) y

To LLZZ whom, t may concern,.- 4

Be it known that I, HENRY W. SHEPARD,

Vof St. Louis, Missouri, have made a new and -iaet description.

The improvement relates to the means for settling the impurities oi' the water.

The annexed drawings, making partofI this specification, illustrate the most desirable form ofthe improved heater.

Figure 1 is a side elevation'of the heater, a portion of the outer and also of the inner case being broken away to exhibit the interior. Fig. 2 isa vertical central section, and Fig. 3 is a horizontal section on the line 3 3 of Fig. 2. i

The same letters of reference same parts.

A represents the outer oase of the construction. Itis closed to the outer air. It rests upon the settling-chamber B, the top b of denote the which is preferably the lower endof the case. The water is introduced into the heater through the pipe C, which leads into the settling-chamber B, and thence turns upward through the top of the settling-chamber and into what may be termed the settling-tube D. This tube at its lower end opens into the settling-chamber, and iteXtends then ce upward through the inner case, E, through the upper end, a, of the outer case, and above the outer case it leads into the scum-chamber F. The portion c of the pipe C is smaller in diameter than the settlingtube, and hence kthere is an annular space around the pipe C, through which the settlings can drop from the settlingtube into the settlingehambers.

The inner case or heater proper, E, contains the compartment e, into which the exhaust-steam is delivered by means of the i pipe G. The steam passes thence downward through the tubes H H., and at the lower end of the heater proper is delivered into ,the space between the inner and outerv cases,.and it finally escapes from the heater at the outlet I.

The heater proper, E, is conveniently held in place by resting its lower end upon the settling-chamber, substantially as shown iu Fig. 2, so as to leave a suitable space between the lower end of the heater proper and the top of the settlingchamber, for the steam to escape from the tubes H H into and by attaching it to the settlingtube, substantially as shown.

Communication is established between the interior of the settling-tube and the interior of the heater proper by means of the perfora- -tions d df in the shell of the settling-tube.

rIhe perforations d are at 0r near the top of the water-space e of the heater proper, and the perforations d are at or near the bottom oi' the water-space e. rlhe pipe C extends above the perforations d.

J represents a valve adapted to seat at j, Fig. 2, and attached to astem j', which passes upward through the upper end of the settlingtube and through the scunrchamber, subn stantially ais-shown, and by means of which stem the valve can be raised and lowered Within the settlingtube, and the valve thereby seated and unseated. e

In operating the heater the water is heated by allowing it to pass from the settling-tube through the perforations d cl into the waterspace e, where it is allowed to come in con tact with the tubes H` H, and after being heated the water is discharged through 'the pipe K. .f As the water passes upward in the settling-tube, the heavier impurities settle past the pipe c into the settling-chamber. riihe lighter impurities pass in part into the water-space e', and the scum collects in the scum-chamber.

Vhen it is desiredto clean the heater of its impurities, the valve J is seated, as shown in Fig. 2. The heater is then and by means of a suitable valve, L, Fig. l, opened at its lower end, whereupon the contents of` the settlingchamber are blown out, and the impurities at the lower end of the water-space e are forced through the perforations d'into the lower end of the settling-tube, thence into the settlingchamber, and thence past the valve L. When r IOO tube, thence into the scum-chamber, and thence With the scum are discharged through the pipe m past the valve M. The heatenean thus be cleaned at the top and at the bottoni,

5 as desired. The settlingtube also serves, too,

as a tie to strengthen the structure.

I c1airnl. The combination, in a feed-Water heater, of the heaterproper, E, and the settlingtube 1o D, said settling-tube and the Water-space e being connected at the upper and lower ends of the Water-space, as and for the purpose described.

2. The combination of the ease A, the set- 15` thug-chamber B, the pipes C G I K m, the

C. D. MOODY, JOHN O BRIEN.

Correction in Letters Patent No. 321,541.

It is hereby certified that Letters Patent No. 321,541, granted July 7, 1885, upon the application of Henry Shepard, of St. Louis, Missouri, for an improvement in Feed Water Heaters, was erroneously issued to sid Shepard; that the said Letters Patent should have been issued to the eaid Henry W. Shepard and Jahn OBren, said OBrien being assignee of one-half interest; and that the said Letters Potent should be rend with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed, eountersigned, and sealed this 6th day of' October, A. D. 1885.

[ SEAL] H. L. M ULDROW,

. Acting Secretary of the I nterior.

.(lountrsigued:

M. V. MoNTGoMmRY,

Commissioner of Patents. 

